FRHD 2060 Lecture Notes - Lecture 3: Diffusion Mri, Hyperintensity, Reduced Properties

• School: University of Guelph
• Department: Family Relations and Human Development
• Course: FRHD 2060
• Professor: Scott Maitland

Document Summary

Especially in prefrontal cortex, hippocampus and cerebellum. Provides index of density or structural health of white matter. Due to wmh and reduced volume of prefrontal cortex. Speci c structural changes (e. g. , the hippocampus) result in memory decline. Increased processing of positive emotional information with age. Olderadults may rely more on automatic judgement processes than re ective processing. The positivity effect: older adults are more motivated to derive emotional meanings from life and to maintain positive feelings than younger adults. Proposes that intelligence comes from a distributed and integrated network of neurons in the parietal and frontal areas of the brain. Studies show that, when presented with similar tasks, younger adults exhibit focal, unilateral activity in left prefrontal region and older adults exhibit bilateral activity (both left and right prefrontal areas). Bilateral activation in older adults plays a supportive role in older adults" cognitive function.